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https://issues.apache.org/jira/browse/CALCITE-3206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16890684#comment-16890684
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jin xing commented on CALCITE-3206:
-----------------------------------
THX [~danny0405]
I will close this issue
> Better error message when param type incompatibility
> ----------------------------------------------------
>
> Key: CALCITE-3206
> URL: https://issues.apache.org/jira/browse/CALCITE-3206
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: jin xing
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> In current code, when we query like below
> {code:java}
> @Test public void test() {
> CalciteAssert.model(HR_FKUK_MODEL)
> .query("select * from \"events\" where \"eventid\"='123'")
> .returns(CalciteAssert.outputResult());
> }
> {code}
> Where {{eventid}} is of INTEGER type, Calcite will throw exception as below
> {code:java}
> Caused by: org.codehaus.commons.compiler.CompileException: Line 13, Column
> 100: Cannot compare types "int" and "java.lang.String"
> at
> org.codehaus.janino.UnitCompiler.compileError(UnitCompiler.java:12211)
> at
> org.codehaus.janino.UnitCompiler.compileBoolean2(UnitCompiler.java:4239)
> at org.codehaus.janino.UnitCompiler.access$6600(UnitCompiler.java:215)
> at
> org.codehaus.janino.UnitCompiler$14.visitBinaryOperation(UnitCompiler.java:3957)
> at
> org.codehaus.janino.UnitCompiler$14.visitBinaryOperation(UnitCompiler.java:3935)
> at org.codehaus.janino.Java$BinaryOperation.accept(Java.java:4864)
> at
> org.codehaus.janino.UnitCompiler.compileBoolean(UnitCompiler.java:3935)
> at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2475)
> {code}
> It's kind of hard to understand for user to refine the sql
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